You have a link to those stats?
I do remember that pre-911 Arabs have always been known for voting for the most pro-business candidate and George W Bush was a favorite candidate in 2000. That's very well known.
SOURCE:
http://en.wikipedia.org/wiki/Islam_in_the_United_States
Politics
In the 2000 Presidential election, nearly 80 percent of Muslim Americans supported Republican candidate George W. Bush over Democratic candidate Al Gore. However, due to the invasions of Afghanistan and Iraq which took place under the Bush Administration, as well as increased anti-Muslim rhetoric from the Republican Party after the September 11 attacks, support for the Republican Party among American Muslims has declined sharply. By 2004, Bush’s Muslim support had been reduced by at least half, who would vote for Democratic candidate John Kerry or a third party candidate.[96] By 2008, Democratic candidate Barack Obama got 67% to 90% of the Muslim vote depending by region.[97]